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Rescue KVM/Proxmox VMs with libguestfs: Reset Root Password, Fix Boot Errors, and Recover Data Quickly

By IT From Zero October 3, 2026

Learn how to use the libguestfs tool suite on Linux to rescue KVM/Proxmox VMs: fix fstab errors, reset root passwords, and mount virtual disks to extract data with single commands.

Virtualization

Zero-Downtime KVM/Proxmox Live Migration: Dedicated Networks, ZSTD Compression, and Post-Copy

By IT From Zero October 3, 2026

A comprehensive guide to solving stalled Live Migrations in KVM and Proxmox VE. Learn how to configure dedicated networks, leverage ZSTD compression, and employ Post-copy for seamless VM migrations.

Virtualization

Remote Proxmox Access: Forget Port Forwarding, Cloudflare Tunnel is the Game Changer

By IT From Zero September 10, 2026

Forget risky port forwarding. Here is how to use Cloudflare Tunnel for secure, professional, and completely free remote access to Proxmox VE.

Virtualization

Configuring Proxmox VE Replication with ZFS: High Availability and Disaster Recovery Without a SAN

By IT From Zero September 8, 2026

Proxmox VE Replication uses ZFS send/receive to sync VM disks between nodes every 15 minutes — a practical High Availability alternative to a SAN at zero cost. Covers step-by-step setup via CLI and Web UI, real-world failover testing, and automated monitoring to catch failures before they become incidents.

Virtualization

Configuring Serial Console for KVM and Proxmox: A ‘Lifeline’ When SSH Suddenly Drops

By IT From Zero September 7, 2026

Losing SSH access is a Sysadmin's nightmare. This guide shows you how to configure Serial Console for KVM and Proxmox to quickly access VMs for recovery and easily copy-paste commands.

Virtualization

Managing Dozens of Proxmox Clusters Centrally with PDM (Proxmox Datacenter Manager)

By IT From Zero September 7, 2026

A detailed guide on installing Proxmox Datacenter Manager (PDM) to centrally manage multiple PVE clusters. An optimal solution for sysadmins to monitor all resources from a single interface.

Virtualization

Configuring vTPM 2.0 with swtpm on Proxmox and KVM: The Key to Enabling BitLocker for Virtual Machines

By IT From Zero September 5, 2026

A detailed guide on configuring vTPM 2.0 using swtpm on Proxmox VE and KVM. This solution ensures Windows 11 VMs run smoothly and enables BitLocker disk encryption.

Virtualization

Stopping the ‘Noisy Neighbor’: How to Effectively Limit Disk I/O on Proxmox & KVM

By IT From Zero September 4, 2026

Don't let a single virtual machine slow down your entire system. Learn how to limit IOPS and Bandwidth on Proxmox/KVM to eliminate the Noisy Neighbor problem for good.

Virtualization

Installing Proxmox VE on Raspberry Pi 5: Ultra Low-Cost ARM64 Home Lab with Debian Port

By IT From Zero September 3, 2026

A guide to installing Proxmox VE on Raspberry Pi 5 (ARM64) using Debian Bookworm as the base — no official ISO required. Build a low-cost virtualization home lab that consumes just 5–12W of power, capable of running LXC containers and ARM64 VMs for learning and testing.

Virtualization

Optimizing Windows on KVM/Proxmox: Achieve 99% Bare-Metal Performance

By IT From Zero August 31, 2026

Secrets to optimizing Windows VMs on Proxmox for 99% bare-metal performance. A detailed guide on VirtIO SCSI, CPU Host, io_uring, and QEMU Guest Agent based on real-world experience.